{"id":"https://openalex.org/W3189035828","doi":"https://doi.org/10.1109/icc42927.2021.9500472","title":"Joint Cache Placement and Content Delivery in Satellite-Terrestrial Integrated C-RANs","display_name":"Joint Cache Placement and Content Delivery in Satellite-Terrestrial Integrated C-RANs","publication_year":2021,"publication_date":"2021-06-01","ids":{"openalex":"https://openalex.org/W3189035828","doi":"https://doi.org/10.1109/icc42927.2021.9500472","mag":"3189035828"},"language":"en","primary_location":{"id":"doi:10.1109/icc42927.2021.9500472","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc42927.2021.9500472","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICC 2021 - IEEE International Conference on Communications","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5062288159","display_name":"Dairu Han","orcid":"https://orcid.org/0000-0002-1812-5501"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dairu Han","raw_affiliation_strings":["Nanjing University of Science and Technology,Dept. of Aeronautical and Astronautical Engineering,China","Dept. of Aeronautical and Astronautical Engineering, Nanjing University of Science and Technology, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nanjing University of Science and Technology,Dept. of Aeronautical and Astronautical Engineering,China","institution_ids":["https://openalex.org/I36399199"]},{"raw_affiliation_string":"Dept. of Aeronautical and Astronautical Engineering, Nanjing University of Science and Technology, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102864216","display_name":"Haixia Peng","orcid":"https://orcid.org/0000-0001-7206-4706"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Haixia Peng","raw_affiliation_strings":["University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","Dept. of Electrical and Computer Engineering, University of Waterloo, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008740845","display_name":"Huaqing Wu","orcid":"https://orcid.org/0000-0002-3497-6437"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Huaqing Wu","raw_affiliation_strings":["University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","Dept. of Electrical and Computer Engineering, University of Waterloo, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110370622","display_name":"Wenhe Liao","orcid":"https://orcid.org/0000-0001-5607-8024"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenhe Liao","raw_affiliation_strings":["Nanjing University of Science and Technology,Dept. of Aeronautical and Astronautical Engineering,China","Dept. of Aeronautical and Astronautical Engineering, Nanjing University of Science and Technology, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nanjing University of Science and Technology,Dept. of Aeronautical and Astronautical Engineering,China","institution_ids":["https://openalex.org/I36399199"]},{"raw_affiliation_string":"Dept. of Aeronautical and Astronautical Engineering, Nanjing University of Science and Technology, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100773343","display_name":"Xuemin Shen","orcid":"https://orcid.org/0000-0002-4140-287X"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Xuemin Sherman Shen","raw_affiliation_strings":["University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","Dept. of Electrical and Computer Engineering, University of Waterloo, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Waterloo,Dept. of Electrical and Computer Engineering,Canada","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.7982,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.94726997,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9948999881744385,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8416762351989746},{"id":"https://openalex.org/keywords/backhaul","display_name":"Backhaul (telecommunications)","score":0.8155571818351746},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.771847665309906},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6135773658752441},{"id":"https://openalex.org/keywords/multicast","display_name":"Multicast","score":0.584093451499939},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.4284589886665344},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.42712321877479553},{"id":"https://openalex.org/keywords/cache-algorithms","display_name":"Cache algorithms","score":0.4223382771015167},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4028020203113556},{"id":"https://openalex.org/keywords/cpu-cache","display_name":"CPU cache","score":0.2761572003364563},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15182453393936157},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.1479402780532837}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8416762351989746},{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.8155571818351746},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.771847665309906},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6135773658752441},{"id":"https://openalex.org/C32295351","wikidata":"https://www.wikidata.org/wiki/Q899288","display_name":"Multicast","level":2,"score":0.584093451499939},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.4284589886665344},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.42712321877479553},{"id":"https://openalex.org/C38556500","wikidata":"https://www.wikidata.org/wiki/Q13404475","display_name":"Cache algorithms","level":4,"score":0.4223382771015167},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4028020203113556},{"id":"https://openalex.org/C189783530","wikidata":"https://www.wikidata.org/wiki/Q352090","display_name":"CPU cache","level":3,"score":0.2761572003364563},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15182453393936157},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1479402780532837}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icc42927.2021.9500472","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icc42927.2021.9500472","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICC 2021 - IEEE International Conference on Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8700000047683716,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320322725","display_name":"China Scholarship Council","ror":"https://ror.org/04atp4p48"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W2108787612","https://openalex.org/W2213621529","https://openalex.org/W2221524898","https://openalex.org/W2344268109","https://openalex.org/W2742795165","https://openalex.org/W2767860529","https://openalex.org/W2799986488","https://openalex.org/W2911893217","https://openalex.org/W2963536698","https://openalex.org/W2982556320","https://openalex.org/W2986271133","https://openalex.org/W2999271997","https://openalex.org/W3004172495","https://openalex.org/W3037277837","https://openalex.org/W3040668711","https://openalex.org/W3103833233"],"related_works":["https://openalex.org/W2031173804","https://openalex.org/W2041820064","https://openalex.org/W2009566782","https://openalex.org/W1524955365","https://openalex.org/W2509523906","https://openalex.org/W2100901045","https://openalex.org/W2114386333","https://openalex.org/W2147511796","https://openalex.org/W2354520536","https://openalex.org/W3085471909"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,61,107,144],"investigate":[4],"the":[5,21,57,69,79,82,90,103,120,139,157,165,175],"joint":[6,53],"cache":[7,70,141,169],"placement":[8,142],"and":[9,33,48,74,86,118,129,163,171],"content":[10],"delivery":[11,105],"in":[12],"satellite-terrestrial":[13],"integrated":[14],"cloud":[15],"radio":[16],"access":[17,25],"networks.":[18],"We":[19],"consider":[20],"scenario":[22],"where":[23],"cache-enabled":[24],"points":[26],"(APs),":[27],"including":[28],"multiple":[29],"base":[30],"stations":[31],"(BSs)":[32],"one":[34],"low":[35],"orbit":[36],"earth":[37],"satellite,":[38],"are":[39],"connected":[40],"to":[41,66,150],"a":[42,125,134],"central":[43],"processor":[44],"via":[45,52],"backhaul":[46],"links":[47],"cooperatively":[49],"serve":[50],"users":[51],"beamforming.":[54],"To":[55],"minimize":[56],"long-term":[58,140,176],"power":[59,177],"consumption,":[60],"formulate":[62],"an":[63,112,146],"optimization":[64],"problem":[65,92,117],"jointly":[67],"optimize":[68],"placement,":[71],"AP":[72],"clustering,":[73],"multicast":[75,115],"beamforming,":[76],"while":[77],"satisfying":[78],"constraints":[80],"on":[81,174],"transmission":[83],"power,":[84],"quality-of-service,":[85],"caching":[87],"storage.":[88],"Since":[89],"formulated":[91],"has":[93],"mixed":[94],"timescales,":[95],"it":[96,110,132,152],"is":[97],"decoupled":[98],"into":[99],"two":[100],"sub-problems.":[101],"For":[102,138],"short-term":[104],"sub-problem,":[106,143],"first":[108],"reformulate":[109],"as":[111],"equivalent":[113],"sparse":[114],"beamforming":[116],"approximate":[119],"non-convex":[121],"objective":[122],"function":[123],"by":[124],"concave":[126],"smooth":[127],"function,":[128],"then":[130],"solve":[131],"with":[133],"convex-concave":[135],"procedure":[136],"approach.":[137],"propose":[145],"alternating":[147],"based":[148],"method":[149,162],"tackle":[151],"iteratively.":[153],"Simulation":[154],"results":[155],"validate":[156],"advantages":[158],"of":[159,167],"our":[160],"proposed":[161],"show":[164],"impacts":[166],"different":[168],"capacities":[170],"file":[172],"numbers":[173],"consumption.":[178]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
